[#2333] [Console] Fix 'set and then get' in config command

* The get method was returning old config information so use correct
 core get callback.
 * Remove redundant deferred in set method

deluge/ui/console/commands/config.py

@@ -34,8 +34,6 @@
 #
 #
 
-from twisted.internet import defer
-
 from deluge.ui.console.main import BaseCommand
 import deluge.ui.console.colors as colors
 from deluge.ui.client import client
@@ -106,8 +104,7 @@ class Command(BaseCommand):
             return self._get_config(*args, **options)
 
     def _get_config(self, *args, **options):
-        deferred = defer.Deferred()
-        config = component.get("CoreConfig")
+        def _on_get_config(config):
             keys = config.keys()
             keys.sort()
             s = ""
@@ -129,12 +126,11 @@ class Command(BaseCommand):
                     value = "\n".join(new_value)
 
                 s += "  %s: %s%s\n" % (key, color, value)
-
             self.console.write(s)
-        return config
+
+        return client.core.get_config().addCallback(_on_get_config)
 
     def _set_config(self, *args, **options):
-        deferred = defer.Deferred()
         config = component.get("CoreConfig")
         key = options["set"][0]
         val = simple_eval(options["set"][1] + " " .join(args))
@@ -152,11 +148,9 @@ class Command(BaseCommand):
 
         def on_set_config(result):
             self.console.write("{!success!}Configuration value successfully updated.")
-            deferred.callback(True)
 
         self.console.write("Setting %s to %s.." % (key, val))
-        client.core.set_config({key: val}).addCallback(on_set_config)
-        return deferred
+        return client.core.set_config({key: val}).addCallback(on_set_config)
 
     def complete(self, text):
         return [ k for k in component.get("CoreConfig").keys() if k.startswith(text) ]